IMDB TOP 250 UPDATE 20230323

更新时间：2023-03-23
The formula for calculating the Top Rated 250 Titles gives a true Bayesian estimate:

weighted rating (WR) = (v ÷ (v+m)) × R + (m ÷ (v+m)) × C

where:
R = average for the movie (mean) = (Rating)
v = number of votes for the movie = (votes)
m = minimum votes required to be listed in the Top 250 (currently 25000)
C = the mean vote across the whole report (currently 7.0)

for the Top 250, only votes from regular voters are considered.

2012-07-20 榜单规则调整：基准投票人数从3000调整为25000，基准平均分从6.9调整为7.1

2013-10-04 榜单规则调整：基准平均分从7.1调整为7.0

2022-03-06 算法迭代，非英语种电影排名大减

IMDB ENGLISH TOP 250
https://www.douban.com/doulist/45944561/

ONCE IN THE TOP 250
http://movie.douban.com/doulist/1518270/

IMDB TV TOP 250
http://www.douban.com/doulist/41573512/

欧洲电影年度奖项-1988-2020（三大电影节+法国凯撒+欧洲电影奖）
http://movie.douban.com/doulist/13716059/

豆列每周更新信息：
http://www.douban.com/group/topic/28984620/

按出品国分类汇总数据
USA 173
UK 15
Japan 14
France 8
Italy 7
Germany 5
India 5
South Korea 4
Sweden 3
Spain 3
Iran 2
SU 2
Denmark 1
Turkey 1
Mexico 1
Australia 1
Canada 1
Brazil 1
Lebanon 1
Argentina 1
Ireland 1

按年份分类汇总数据
1920-1929 6
1930-1939 7
1940-1949 12
1950-1959 23
1960-1969 18
1970-1979 19
1980-1989 27
1990-1999 42
2000-2009 48
2010-2019 43
2020-2022 5